Can't open SketchUp files - Mac version?

[ysquared]

I'm new to KS and this forum.

For the life of me I can't seem to open SketchUp files (.SKP) in KS. I've even tried converting the .SKP files downloaded from the Google Warehouse to the file types available including older .SKP versions, i.e., .skp, .dae, .kmz.. Still no joy.  When trying to open these files with the various pathways available within KS, they're always grayed out and not available.

I see there's a KS plugin for Sketchup, but only available for the PC. Can .skp files only be opened in KS with the PC version?

Setup:
Mac OSX 10.6.8
Keyshot 3.3.33
SketchUp 8.0.15157

[ysquared]

Just realized there's a SketchUp baby forum. Sorry if this is posted in the wrong place